Ambry is not an ORM, man! It's a database and ORM replacement for (mostly) static models and small datasets. It provides ActiveModel compatibility, and flexible searching and storage.

IBAN + SWIFT/BIC: Information, Validation and Formatting.

Emissão de Boletos Bancários em Ruby

BSB number validator with built-in database.

A datamapper plugin for active_model compliance and thus rails 3 compatibility.

DocumentMapper is an object mapper for plain text documents. The documents look like the ones used in jekyll (http://github.com/mojombo/jekyll). They consist of a preambel written in YAML (also called YAML front matter), and some content in the format you prefer, e.g. Textile. This enables you to write documents in your favorite editor and access the content and metadata of these in your Ruby scripts.

Define schemas using a clean DSL and get both JSON Schema documents and runtime validations. Perfect for API request/response validation, LLM function definitions (OpenAI, Anthropic), and structured data modeling. Features Sorbet-style types, schema composition, pluggable validation adapters, and multiple error output formats (JSON:API, RFC 7807).

Small library to check if EIP doc has valid front matter

Elasticsearch integrations for indexing git repositories.

ActiveModel email validator. Checks MX records for domains. Allows you to block free/disposable email providers

Factories via fixtures

include Gollum into Rails with ease

A multi-layer REST API wrapper for neo4j.

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Ruby Wrapper for Klarna Checkout Rest API

Validates email addresses, URLs, IMEI, MAC addresses, latitude, longitude, hex colors and (in-)equality of attributes.

The easier way to use Moip's transparent checkout.

OM (Opinionated Metadata): A library to help you tame sprawling XML schemas like MODS. Wraps Nokogiri documents in objects with miscellaneous helper methods for doing things like retrieve generated xpath queries or look up properties based on a simplified DSL

With Params validator oyu should be able to perform controller params validation easy and with any kind of type, format, or custom validation you already know and use in oyur models.

ActiveRecord extensions for PostgreSQL. Provides useful tools for schema, foreign_key, index, function, trigger, comment and extension manipulations in migrations.